Roller-skate



(No Model.)

G.- D. BURTON.

ROLLER SKATE. No. 271,785.

Patented Feb. 6, 1883..

WITNESSES.

' UNITED STATES PATENT Qrrrca.

ROLLER-SKATE.

SPECIFICATION forming part of Letters Patent No.

271,785, dated February 6, 1883.

Application filed November 17, 1882. (No model.)

To all whom it may concern Be it known that I, GEORGE D. BURTON, of.

description, in connection-with the accompanying drawings, is aspecification, like letters on the drawings representing like parts.

skate when in use.

This invention relating to roller-skates is embodied in a skate havingbut two rollers-- one at the forward and the other at the rear portionof the skatethe said rollers being in line with one another and havingtheir axis of rotation fixed relative to the body of the skate. Theaxles of the rollers have bearings in bearing-boxts fitted to slidevertically in bearingpedestals connected with the body or sole portionof the skate, suitable springs being interposed between the saidbearings and the body of the skate to absorb the jar and prevent it frombeing transmitted to the skater. The axles of the rollers bear upon aseries of balls held in an annular chamber within the bearingboxes, thesaid boxes having recesses at the ends of the roller-axle, in whichadditional balls are placed to receive the end-pressore on the axleswhen the skate is inclined from the vertical position. he rollers haveaoentral or hub portion preferably made of wood, and surrounded by aband of soft rubher, which is itself inclosed in the tire of the roller,which is preferably of iron or steel, and rounded, so as to permit-theinclination of the The rubber band between the central portion of theroller and its tire is normally under a considerable compression, andaffords an elastic cushion to partially absorb the jar incurred when theskate passes over a rough or uneven surface.

Figure l is a side elevation of a roller-skate embodying this invention;Fig.2, a transverse section thereof on line m :r, on a larger scale;

Fig. 3, a central longitudinal section of the roller on line 3 3 Fig.2;Fig. 4, a transverse section thereof, and Fig. 5 a transverse section ofa modified form of roller in which the central portion of the roller. isrecessed to receive a corresponding projecting portion of the rubberband.

The body a of the skate, of any suitable or usual construction adaptedto be attached to the foot in any usual manner, is provided withbeal'ingpedestals I), having a passage or slot, 2, which receives andforms a guide for the bearing-boxes c of the axles d of the rollers 6,two only of which are employed on each skate. Springs or cushionsfareplaced in the guides of the pedestals b above the bearing-boxes 0. theyserving to prevent the transmission of shocksupon the rollers c to thewearer of the skate. The axles cl of the rollers are surrounded by andbear upon a series of balls, 71., man annular recess, i, in the boxes 0,the said balls being kept in place by caps 70, attached to the saidboxes 0. The ends of the shaft d rest in contact with balls an, placedin suitable chambers, a, in the boxes 0, the said balls constitut-ingpivots for receiving the end-pressure brought upon the axle (I when theskate is in an inclined position. I r

The rollers c consist of a central portion, 0,

fixed upon the axle d, preferably made of wood, it being surrounded by aband,1a,of soft rubber, upon which is placed the tire or rim 4,preferably made of iron, and rounded, 'as shown, so as to bear equallywell when the skate is in an inclined or vertical posi tion. The bandofrubber 0 will be under great compression, so that the adhesion andfriction between its-surface and that of the partsp r of the roller willbe sufficient to secure the said parts together; but, if desired, thesaid band may have an annular projectiomp, as shown at Fig. 5, enteringa corresponding recess in the portion 0 of the roller, and a similarprojection might be made to enter a similar recess in the tire r, asshown in dotted lines,

Fig. 5. I do not herein claim the means employed for connecting therollers with the body of the ers. in line with one anotheratthe forwardand balls in the said chambers to afford an antias described.

band of rubber surrounding it, and arounded tire inclosing the saidrubber band, substantially as described.

In testimony whereofI have signed my name 15 to this specificationin thepresence of two subscribing witnesses.

rear end of the skate, and the hearing-boxes for the axles of thesaidroller having an annular chamber surrounding the said axle, andachamber at the end of the said axle, and the friction bearing for thesaid ax1e, substantially 3. In a roller-skate, the combination of the Oskate-body,'its bearing-pedestals, and bearingboxes therein, with thetwo rollers in line with one another, composed of a central portion, a

Witnesses:

Jos. P. LIVERMoRE, BERNICE J. NoYEs.

